239 extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long…
240 extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n…
241 extern unsigned long __must_check __copy_in_user(void __user *to, const void __user *from, unsigned…
244 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned…  in copy_from_user()  argument
246 	if (access_ok(VERIFY_READ, from, n))  in copy_from_user()
247 		n = __copy_from_user(to, from, n);  in copy_from_user()
253 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned l…  in copy_to_user()  argument
256 		n = __copy_to_user(to, from, n);  in copy_to_user()
260 static inline unsigned long __must_check copy_in_user(void __user *to, const void __user *from, uns…  in copy_in_user()  argument
262 	if (access_ok(VERIFY_READ, from, n) && access_ok(VERIFY_WRITE, to, n))  in copy_in_user()
263 		n = __copy_in_user(to, from, n);  in copy_in_user()